JP3250278B2 - Electronic musical instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument provided with a keyboard and a display for displaying musical pieces and various musical parameters.

[0002]

2. Description of the Related Art In a keyboard-equipped electronic musical instrument in which a musical piece and various musical tone parameters are displayed on a display, a cursor and a cursor key for moving the cursor are used to select a musical piece or musical tone parameter on the display. Is done. Also,
A mouse or a joystick may be used instead of the cursor keys.

[0003]

However, in the above configuration, it is necessary to always provide a cursor key, a mouse, and the like as means for moving the cursor, and when a hand is placed on the keyboard during a performance or the like. In order to move the cursor, the user must once release his / her hand from the keyboard to operate a cursor key or the like, which is inconvenient to operate.

[0004] It is an object of the present invention to provide an electronic musical instrument that allows a cursor to be pointed at an arbitrary position on a display screen without releasing the hand from the keyboard when the hand is placed on the keyboard. It is in.

[0005]

According to the present invention, a keyboard, a display on which arbitrary information is displayed together with a cursor, and a relative position information of each key operated one after another on the keyboard are provided. Cursor position control means for controlling a cursor position on the display.

[0006]

According to the present invention, each key of the keyboard also functions as a pointing device. That is, the cursor position is controlled based on the relative position information of each key operated one after another on the keyboard. The relative position information of each key is the pitch information of each key. The cursor position is controlled by, for example, pressing a key having a higher pitch than a certain key on a white key, and moving the cursor to the right by a predetermined amount.
When a key with a lower pitch is pressed after pressing a certain key, the cursor is moved leftward by a predetermined amount. Pressing a black key after pressing a white key moves the cursor upward by a predetermined amount. Pressing a black key and then pressing a white key moves the cursor. Move downward by a fixed amount. With such a control method, the cursor on the screen can be moved to an arbitrary position.

[0007]

FIG. 1 is a schematic view of an electronic musical instrument according to an embodiment of the present invention. A display 2, a speaker 3, and a controller 4 are connected to the electronic musical instrument main body 1. Electronic musical instrument body 1
Is a CD on which a keyboard 1a and a CD-ROM 1b can be set.
A ROM mounting section 1c, a card mounting section 1e in which a silicon card disk 1d as an external memory can be set, and a decision button 1f for deciding a performance music name or the like designated by a cursor on the screen. . The controller 4 connected to the electronic musical instrument body 1 is a known TV.
When the electronic musical instrument has a structure similar to that of a controller used for a game or the like and is set to a mode in which a TV game is performed while playing a song, the controller 4 is used for moving a specific display target displayed on a display screen. Can be used. CD-ROM 1b and silicon card disk 1d
Stores performance data, game programs, and the like.

FIG. 2 shows the stored contents of the CD-ROM 1b and the silicon card disk 1d. Display data area M
Reference numeral 1 stores display content data d, and in this embodiment, the name of a music piece to be played and coordinate data c and d for displaying the data (the name of the music piece), and the performance data area M2 contains a music piece corresponding to the music piece name. Data is stored at the address indicated by the storage area designation data e. Further, the allowable ranges of the X and Y coordinates are stored in a and b. That is,
When the operator operates the cursor to operate the enter button 1f at a position that satisfies the conditions a and b, the performance data is read from the area MZ indicated by the storage area designation data e corresponding to a and b. You. CD-ROM 1b
Alternatively, when the silicon card disk 1d is mounted, screen data as shown in FIG. 1 is written in an internal graphic RAM (GRAM) based on the data in the display data area M1, and the data d is written in accordance with the screen data.
Is controlled by the screen formation output control circuit so that is displayed at the position indicated by the data c on the display screen.

FIG. 3 is a block diagram of the electronic musical instrument. The control unit is a CPU 10, a RAM 11, a ROM 12, a G
It comprises a RAM 13, a tone formation output control circuit 14, and a screen formation output control circuit 15, to which the keyboard 1a, the decision switch 1f, the controller 4, the external storage device CD-ROM 1b, and the silicon card disk 1d are connected. You. Note that the speaker 3 is connected to the tone formation output control circuit 14, and the display 2 is connected to the screen formation output control circuit 15.

FIG. 4 shows a main routine of the control routine of the electronic musical instrument. When the power is turned on, various registers are initialized, and key depression of the keyboard 1a and other switch operations are detected. Next, based on the detection result, screen control, tone control and other processing are performed, and the process returns to the key press detection routine again. In the screen control step, cursor inversion display control of the current cursor position is performed in accordance with information in a cursor register that stores the current cursor position. Further, control is performed to display predetermined display contents on the screen in accordance with the data in the display data area M1. In the musical tone control step, when the keyboard 1a is operated, a performance is performed according to the operation, or an automatic performance is performed.

FIG. 5 is a flowchart showing key event processing of the keyboard 1a in a mode in which a cursor position operation on the screen is performed using the keyboard 1a. When there is a key-on event, the data in the register NK is transferred to the register OK. The register NK is a register for storing a key code of a newly pressed key, and the register OK is a register for storing a key code of a key pressed immediately before.
Next, the key code of the new key (the newly pressed key) is taken into NK. Then, the moving position of the cursor on the display screen is determined according to the contents of NK and OK. That is, if both NK and OK are key codes of a white key and NK is larger than OK, the X coordinate of the current cursor position is increased by a predetermined amount A. In this case, the cursor moves rightward on the screen.

Further, both NK and OK are white keys, and NK is OK.
If less, the X coordinate is reduced by a predetermined amount A. In this case, the cursor moves to the left on the screen. When OK is a white key and NK is a black key, the Y coordinate of the cursor is increased by a predetermined amount B. In this case, the cursor moves upward on the screen. When OK is a black key and NK is a white key, the Y coordinate is
Just reduce. In this case, the cursor moves downward on the screen. Basically, by the above determination, the cursor can be moved by a predetermined amount in the X (left / right) direction or the Y (up / down) direction from the current cursor position. The cursor can be moved continuously in the X or Y direction,
In order to be able to reverse the up and down movement direction, both NK and OK are cleared after a certain time has elapsed.
In this case, the next input key code after a certain time has passed is N
What is necessary is just to substitute into both K and OK. If the continuous operation is performed within a fixed time, the cursor can be continuously moved in one direction, and the moving direction of the cursor can be reversed by an intermittent operation after a certain time. For example, as shown in FIG. 6, when the white key is continuously operated in the right direction like a glissando performance, the operation interval of each key is within a predetermined time, so that the cursor continuously moves in the right direction. In this case, the movement amount is the operation range of the white key, that is, the movement amount of the finger.

It is also possible to control the amount of movement of the cursor so as to be proportional to the pressing time of a newly pressed key. With this control, the amount of movement in the Y direction using the black key can be easily controlled. If two keys are pressed, that is, once the cursor movement processing is performed, NK,
OK may be cleared.

[0014]

According to the present invention, quick pointing is possible without releasing the hand from the keyboard, and there is an advantage that operability is improved. In addition, since it is not necessary to provide a cursor key or the like, there is an advantage that the appearance and structure of the electronic musical instrument main body can be simplified.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an electronic musical instrument according to an embodiment of the present invention.

FIG. 2 is a diagram showing the contents of data stored on a CD-ROM and a silicon card disk.

FIG. 3 is a block diagram of the electronic musical instrument.

FIG. 4 is a diagram showing a main routine of the electronic musical instrument.

FIG. 5 is a diagram showing an operation of the electronic musical instrument at the time of a key event.

FIG. 6 is a diagram showing a keyboard operation method when the cursor is continuously moved to the right.

Claims (1)

(57) [Claims] 1. A keyboard, a display on which arbitrary information is displayed together with a cursor, and a cursor position on the display based on relative position information of each key operated one after another on the keyboard. An electronic musical instrument comprising: